Energy Efficient Coil Coating Process

Coil coating is an important industrial process applied in a major part of industrial steel and metal alloy production and associated with big facilities and large primary energy consumption.

A major part of the overall plant size and the energy demand of coil coating facilities is associated with the drying/curing process that occur inside a curing oven, which is the bottleneck concerning the increase of the production capacity. In this drying/curing process, organic solvents are vaporized from the applied liquid coating film and since they are flammable, the usually applied curing ovens with convective air drying technology have to be operated far below the Low Explosive Limit (LEL), due to safety constraints.

ECCO proposes a novel solution for the curing oven operation, which can not only drastically increase the compactness and energetic efficiency of the system, but leads to an increased production flexibility due to a fuel-flexible, modular and potentially energetically self-sustainable process. The main idea is to heat the metal strip by IR-radiation and operate the curing oven well above the Upper Explosive Limit (UEL), thus, performing the drying and curing process in an atmosphere mainly consisting of the solvent vapours, which are used as fuel in IR radiant porous burners. This solution leads to a size/ production capacity ratio reduction of 70% and a reduction of investment and operating costs of at least 40% each.

Starting from previous activities at TRL 4, an interdisciplinary approach is foreseen, based on advanced-materials, combustion technology and prediction tools for system design/ optimization, with active participation of key industrial stakeholders, to bring this technology to TRL 6 and realize a prototype furnace at industrially relevant size and environment.


Numerical investigation of an innovative furnace concept for industrial coil coating lines
Barata, B. A. C.; Dias, B. S.; Navalho, J. E. P.; Schneider, M.; Weinbrecht, P.; Weis, C.; Trimis, D.; Pereira, J. C. F.
2023. Thermal Science and Engineering Progress, 42, Art.-Nr.: 101843. doi:10.1016/j.tsep.2023.101843
Development of a model burner for turbulent premixed hydrogen-air combustion at high exhaust gas recirculation (EGR) rates
Schneider, M.; Bauer, M.; Schulz, S.; Habisreuther, P.; Weis, C.; Stelzner, B.; Trimis, D.
2023. 31. Deutscher Flammentag (2023), Berlin, Germany, September 27–28, 2023
Investigation of the laminar burning velocity of premixed H2-air flames highly diluted with exhaust gas using the heat-flux burner method
Schneider, M.; Bauer, M.; Habisreuther, P.; Weis, C.; Stelzner, B.; Trimis, D.
2023. Proceedings of the 11th European Combustion Institute Meeting - 2023 Proceedings of the European Combustion Meeting 2023, 1–6. doi:10.5445/IR/1000165131
A Pilot Scale Demo Line for Continuous Energy Efficient Coil Coating
Weinbrecht, P.; Schneider, M.; Wieland, C.; Weis, C.; Trimis, D.
2022, September 14. (Bio-)Process Engineering - a Key to Sustainability (2022), Aachen, Germany, September 12–15, 2022
Eine Pilotanlage zur energieeffizienten Stahlbandbeschichtung
Weis, C.; Weinbrecht, P.; Schneider, M.; Wieland, C.; Trimis, D.
2022, March 30. Jahrestreffen der ProcessNet-Fachgruppen "Abfallbehandlung und Wertstoffrückgewinnung, Energieverfahrenstechnik, Gasreinigung, Hochtemperaturtechnik, Rohstoffe" (2022), Bamberg, Germany, March 30–April 1, 2022
Energy Efficient Coil Coating Process - ECCO
Schneider, M.; Weinbrecht, P.; Wieland, C.; Weis, C.; Trimis, D.
2020. 12th European Conference on Industrial Furnaces and Boilers (INFUB-12) : 10th and 11th November 2020